Process of producing gas.



No. 869,486. PATENTED OCT. 29, 1907. B. E. ELDRED & G. ELLIS. PROCESS OF PRODUCING GAS.

APPLICATION FILED FEB. I 1906.

INVENTORS;

WITNESSES @M BYRON n. ELDRED AND CARLETON EL'LIs UTILITIES column I ,or New YORK, Y. or NEW YORK, .N. Y,

I N. {,ASSIGNORS TO COMBUSTION A CORPORATION OF' NEW'YORK.

PROCESS O'F" PRODUCING GAS..-

Specification of Letters Patent.

gf'atented a; 29, leer.

nppIication-filed February 1- 1905. I Serial No. 243,60l.

' To all whom it may concern:

Be it known thatg'we, BYRON ELDRED and GARLE- v producer is functionally I TON ELLrs, c tizens of the United States, and residents of New York city, in the county of New York and State "of New York, have invented certain new and useful Improvements in Suction Gas-Producer Process, of which the following specification and accompanying drawings disclose as'au illustration an embodiment thereof, which weregard as one of the best of the vari ous forms in which be applied. i V i v This invention relates to the. art of making gas by the producer process asdistin'guish d from theretort and water gas processes. i

It relates to that branch of the art whereinthe gas remote from the consuming therefore be an entirely independthe principles of our invention may apparatus and may not absolutely necessary to the practice of our inven tion, and it ispossible to combine the gas producing and consuming apparatus in a single structure provided its organization be suchas to preserve the es sential functional characteristics.

Our invention, however, relates particularly to the production of a combustible gas containing little or no hydrogen, particularly adapted fot' use in internal explosion engines It has been found that hydrogen is an undesirable constituent of gas used for this purpose. In 'all gas producers operated by stoan'i the presence of'hydrogeu is unavoidable asthe dissociaent structure, although independence of structdrc is tion of the steam in its passage through the bed of fuel or soot in objectionableqrmntities, it is necessary to I bring alaoutdwitliin the mass of fuel an endothermic reaction of some sort.

in the producer gives rise to this constituent in large quantities. lu order to allow of a continuous 0pcra tion ofthe producer and to keep its temperature suf-t ficientlylow-to prevent the formation of clinker, slag In this way the high teinpcra ture ofthe pioducer may be avoided and the heat generated the combustion of carbon to carbon inonoxid largely conserved and delivered from the producer in the form pt. potential heat energy of combustible Steam has been up to 'the present time practically the only "endothermically reactingbody selected for this purpose." Carbon dioxid is however far superior to l steam iii-this connection, owing to the facility with which it dissociates and "to its cheapuess as compared with steam. Ith as been found difficult to secure carbon'clioxid insufficiently large quantities-that is to desired and in an seyin a concentrated form for the purpose of satisfaetorily regulating and controlling the temperature of the producer and of the constitution of its evolved gases; 7 i

'lheobject of'the present invention is to provide a method ,for securing carbon dioxid in the quantities economical manner to provide fpr I its suitable dissociation I at other points in the producer, entering the stack of the producer,

in the gas producing apparatus and tordeliver it in such it manner to the gasconsuming apparatus as to effectually conserve the largest amount of energy; For this purpose we make use of the gasesarising from the furnaces or kilns used in the calcination of lime or cement, and. We'preferably use in connectionf with the operatioir of said kilns the process of Byron E. Eldred, the same being described in United States Letters Patent 692,257, as such a process'we have found gives rise to stack or waste gases carrying large and useful amounts pf carbon dioxid. The gases from a kiln of this description, or from any lime kiln of suitable design operated in other ways, are conducted to the gas producer, which consists of a vessel carrying abed of fuel of such depth as is necessary to effect the endothermic reaction hereinbefore-mentioned. To the gases from the lime kiln may be added at any appropriate point prior to their entrance into the producer a certain amount of air, the quantity used being dependent upon the extent to which we desire union of the carbon with the oxygen of the air and the extent to which we desire to oxidize carbon from thh oxygen given up by carbon dioxid in passing through the producer. The mixture of stack gases and air is passed through the bed offuel in any suitable manner. In some cases we prefer to enter the gaseous mixture into the lower part of the producer and allow it to be carried upwards through the mass of fuel. Under other circumstances with fuel of a different character or for other reasons, evident to onc skillcd in the art to which this appertains, we prefer to enter the gaseous current in some cases in fact gases at the top of the produccrand withdrawing the combustible gas from the lower part thus securing a down draft effect. The cpmbustiblegas delivered from the producer is drawn by means of anuechanical draft or suction appliance. placed in the conduit leading from the prod uccr and is start to the place of consumption,which generally as hcrcinhefore mentioned is a gas-engine or a hattery thereof in which thccomlnrstible gas is used for effectually generating mechanical power in any approved manner. For gas engine purposes purification of the gas is desirable and a scrubber-or washer and a gas holder may be introduced into the systcn1.'

In the accompanying diagrannnat-ic drawings 1 represents a lime kiln having thefire box 2 and cooler 3 from which the calcined lime is withdrawn. Lime rock is introduced at the top of the kiln at.4. The gaseous products of combustion and ofthe decomposition of carbonate of lime and carbonate of magnesia, in limqstoucs, dolomite, etc. are taken at, 4" by means of fine 5 to the producer 6. An opening in this flue at 7 servos to admit the required amount of air andadjustby means power purposes which consists lime kiln waste gases and air through- :1 deep bed of ignited fuel, diluting the produced be used than is the combustion.

What we claim is,

1. The process of producing uniform gas suitable for power purposes which consists in sucking a. mixture of lime kiln waste gases and air inadjusted proportions throughn deep bed of ignited fuel, diluting the produced gas to a standard strength by regulated additions of a diluting indifferent gas and collecting the standardized gas for use.

2. The process 01' producing uniform gas suitaple for in adjusted proportions gusto. a standard strength by regulated additions of lime ,kiln waste gases and collecting the stnndardizedgas for use.

3. The p"ocess of producinggas suitable forpower .pur-

poses which consists in collecting waste gases from a coal in sucking a mixture ofcase with Ordinary products of burning lime. kiln, admixing the same with regulated amounts of air, sucking the mixture through a deep bed oi} ignited fuel, purifying the produced gas and collecting the same for use.

4. The process of producing uniform gas suitable for power purposes which consists in collecting waste gases from :1 coal burning lime kiln, admixing the same with 'a regulated amount of air, sucking the mixture through a deep bed of ignited fuel, bringing the produced gas to a standard strength by regulated additions of lime kiln waste gases, purifying the gas and collecting the same for use.

Signed at NewYorki city, and State 01' New York this 1905.

in the county oi. New York, 30th day of January, A. D.

BYRON E. ELDRED. CARLETON ELLIS. Witnesses.

JAsI K. CLARK, M. F. 'MANGELSDORFF. 

